Tiberius's coldness carries over into his relationship with Portia. Though he is her guardian, he shows little interest in her or her friends. As a result, Portia drifts away from him - and all things Roman.
At the end of Series One, Tiberius's evil and sneaky behaviour pays off and he is given a prize assignment: helping to lead the siege of Jerusalem. After Jerusalem falls, Tiberius takes yet another step up the ladder - a job as prefect in Rome.
A vain man, Tiberius is seldom without his precious hand mirror.